ARCHAEOLOGICAL EXPLORATIONS IN PRESLAV (Georgi Maistorski – gmaistorski@gmail.com, Plamen Slavov) There were towers along the eastern fortification wall of the Outer Town of Preslav, situated at c. 120 m from each other. Three towers, 8 m long and 3.25 m wide, were explored along the eastern fortification wall so far and one tower, 6 m long and 3.25 m wide, was explored along the northern fortification wall. Holes from wooden posts, similar to those discovered under Tower No. 2 and other sectors of the wall, were documented at the northeastern corner of the fortification wall. The corner was probably fortified with a circular tower, c. 5 m in diameter. The northern fortification wall close to the corner was up to 3.50 m wide and the eastern fortification wall was not less than 2.50 m wide. There was a timber building with floor plastered with mortar, 12.30 m by 7 m in size, situated in front of the northeastern corner of the fortification wall. The building dated to the end of the 9th – 10th century and was related to the construction of the fortress. Sherds of the 9th – 10th centuries and an iron arrowhead were found in Sondage 20 at Tower No. 3. Sondage 21, situated at 120 m from the northeastern corner, was carried out along the northern fortification wall. There was no evidence of a tower. A drain for collecting the rain water, up to 60 cm wide and up to 40 cm deep, was documented in front of the wall. Sondage 22, situated at 60 m from the northeastern corner, was carried out along the northern fortification wall. Sherds from the 10th century were found. The fortification wall, 3.10 m wide, was documented and wooden posts driven under its foundation were explored.